package com.aoxon.cargo.util;

import java.security.MessageDigest;

import com.aoxon.cargo.bean.Supplier;

/**
 * MD5加密程序
 * @author ZZJ
 *
 */
public class MD5 {
	/**
	 * MD5加密
	 * @param str
	 * @return
	 */
	public static String encrypt(String str) {
		MessageDigest md5 = null;
		
		try {
			md5 = MessageDigest.getInstance("MD5");
		} catch (Exception e) {
			e.printStackTrace();
			return "";
		}
		
		char[] charArray = str.toCharArray();
		byte[] byteArray = new byte[charArray.length];
		
		for (int i = 0; i < charArray.length; i++) {
			byteArray[i] = (byte) charArray[i];
		}
		
		byte[] md5Bytes = md5.digest(byteArray);
		StringBuffer hexValue = new StringBuffer();
		
		for (int i = 0; i < md5Bytes.length; i++) {
			int val = ((int) md5Bytes[i]) & 0xff;
			if (val < 16) {
				hexValue.append("0");
			}
			hexValue.append(Integer.toHexString(val));
		}
		
		return hexValue.toString();
	}
	
	/**
	 * 设置key
	 * @param supplier
	 * @return
	 */
	public static String toKey(Supplier supplier){
		String key = encrypt(supplier.getSupId() + supplier.getSupPassword());
		return key;
		
	}
	
}
